00457    a2200145   4500020001500000082001600015100002400031245006100055260005300116300002000169440003900189650003700228650001400265650003200279  a1895369193  a371.35bDIS  aMugridge, Ian eed.  aDistance education in single and dual mode universities   aCanadabThe Commonwealth of Learningc1992g1992  aiii,158p.c28cm  aPerspectives on distance education  aMethods of instruction and study  aEducation  aSchool and their activities